4709-9-12
Patch test.

(A)
A preliminary
test shall be made twenty-four to forty-eight hours prior to the application of
any hair dye upon any customer. Refer to Title
21 U.S.C
361(a), 2006 Edition,
Supplement 4. Such application shall be made in
accordance with instructions appearing on the label of such hair dye
product.

(B)
Barbers operating in
Ohio are prohibited from servicing any customer with hair dyeing products if
such customer has exhibited a positive reaction to the patch test.